CN105807956B - Capacitive pen - Google Patents
Capacitive pen Download PDFInfo
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- CN105807956B CN105807956B CN201610111625.4A CN201610111625A CN105807956B CN 105807956 B CN105807956 B CN 105807956B CN 201610111625 A CN201610111625 A CN 201610111625A CN 105807956 B CN105807956 B CN 105807956B
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- capacitive
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0441—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0442—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
本发明是有关于一种电容笔，用于电容式书写装置，其包括：导电笔身与导电笔头。导电笔头包括接触部与非接触部，其中接触部较非接触部软，并且导电笔头是由导电纤维胶合，导电笔头是与导电笔身同方向延伸的集束导电纤维。
The present invention relates to a capacitive pen for capacitive writing devices, comprising: a conductive pen body and a conductive pen tip. The conductive pen tip comprises a contact portion and a non-contact portion, wherein the contact portion is softer than the non-contact portion, and the conductive pen tip is glued by conductive fibers, and the conductive pen tip is a bundle of conductive fibers extending in the same direction as the conductive pen body.
Description
The application is that application No. is 201210545877.X, the patent Shens of entitled " condenser type writing device " for China
Divisional application please, the applying date of original application are on December 14th, 2012.
Technical field
The present invention is about a kind of capacitance pen, especially a kind of capacitance pen including pencil conductive fiber.
Background technique
Existing known mutual capacitance type sensor (mutual capacitive sensor), including insulation surface layer, the
One conductive layer, dielectric layer and the second conductive layer, wherein the first conductive layer and the second conductive layer are respectively provided with a plurality of first conductive bar
With the second conductive bar, these conductive bars can be to be made of multiple conductive sheets with the connecting line for conductive sheet of connecting.
When carrying out mutual capacitance type detecting, one of the first conductive layer and the second conductive layer are driven, and the first conductive layer
Another with the second conductive layer is detected.For example, driving signal is provided to the first conductive bar of each one by one, and correspond to
Each is provided the first conductive bar of driving signal, detects the signal of the second all conductive bars to represent and be provided driving letter
Number the first conductive bar and all second conductive bars between confluce capacitive couplings signal.Whereby, it can obtain and represent all
The capacitive couplings signal of confluce, becomes capacitance image between one conductive bar and the second conductive bar.
Accordingly, capacitance image when not touched can be obtained as benchmark, by comparison basis and Subsequent detection
Difference between the capacitance image arrived to judge whether by external conductive object approached or covered, and is further sentenced
The disconnected position for being approached or covering out.
However, difference between the capacitance image that benchmark and Subsequent detection arrive it is bright unobvious close with external conductive object or
The area for covering touch screen is related, it is therefore desirable to which sufficiently large area just can be identified out.Such limitation is so that passive type
The nib of capacitance pen must be very coarse, and diameter causes to be not readily visible pen tip when writing, be not easy accurately book about in 4mm or more
It writes on expected position.
It can be seen that the above-mentioned prior art there will naturally be inconvenient and defect, and pole waits being further improved.To understand
Certainly above-mentioned problem, relevant manufactures there's no one who doesn't or isn't painstakingly seek solution, but have no always for a long time applicable
Design is developed completions, and the not appropriate structure and method of common product and method is able to solve the above problem, this is obvious
It is the problem of related dealer is suddenly to be solved.Therefore a kind of new technology how is founded, it is real to belong to one of current important research and development project,
Also becoming current industry pole needs improved target.
Summary of the invention
The object of the present invention is to provide a kind of condenser type writing device, by corresponding near to or in contact with signal and adjacent letter
Number summation come compared with threshold limit value, can determine whether out small area that script threshold limit value can not judge near to or in contact with.
The object of the invention to solve the technical problems adopts the following technical solutions to realize.It proposes according to the present invention
A kind of condenser type writing device, comprising: capacitance pen, including conductive pen body and conductive pen point, conductive pen body connect with conductive pen point
The coupling of touching property, and conductive pen point includes contact portion and non-contact portion, and wherein contact portion is soft compared with non-contact portion, and conductive pen point
It is by conductive fiber gluing, all or part of conductive fiber extends to contact portion by non-contact portion；And position detecting apparatus,
Include: touch screen, with it is a plurality of be provided driving signal by driving conductive bar and a plurality of provide capacitive couplings variable quantities
It is detected conductive bar, when each driving signal is provided, be simultaneously provided driving signal one or more is conductive by driving
The confluce that item and each are detected conductive bar generates capacitive couplings；And controller, when capacitance pen is by external conductive object
When holding on the touchscreen, controller judges that capacitance pen exists according to the capacitively coupled variable quantity that the confluce generates
Position on touch screen.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, condenser type writing device above-mentioned, wherein the controller includes: and obtains capacitive couplings by touch screen to become
The device of change amount image, wherein each value of capacitive couplings variable quantity image is respectively the capacitive character of one of described confluce
Couple variations amount；It is greater than the device of the confluce of the first threshold limit value by each value of capacitive couplings variable quantity image detecting；
And when detecting confluce of at least one value greater than the first threshold limit value, judges the close of each capacitance pen or connect
The device of the single confluce of touching, wherein each capacitance pen near to or in contact with the adjacent all confluces in single confluce
Both less than the first threshold limit value.
Preferably, condenser type writing device above-mentioned, wherein the controller includes: and obtains capacitive couplings by touch screen to become
The device of change amount image, wherein each value of capacitive couplings variable quantity image is respectively the capacitive character of one of described confluce
Couple variations amount；By capacitive couplings variable quantity image detecting, each is detected the device of confluce, wherein being detected intersection
The value at place is less than the first threshold limit value and is greater than the second threshold limit value；And the device of each first area is detected, each
First area include it is described be detected one of confluce with adjacent to the adjacent confluce for being detected confluce, and first area
Value summation be greater than the first threshold limit value；When detecting at least one first area, judge stylus near to or in contact with
First area device, wherein with capacitance pen near to or in contact with the values of the adjacent all confluces in first area be less than third
Threshold limit value.
Preferably, condenser type writing device above-mentioned, wherein controller is further included: when not detecting any first area
When, the device of each second area is detected, each second area includes that four be detected including confluce are adjacent
Confluce, and the summation of the value of second area be greater than the first threshold limit value；And works as and detect at least one second area
When, judge stylus near to or in contact with second area device, wherein with capacitance pen near to or in contact with second area phase
The value of adjacent all confluces is less than third threshold limit value.
Preferably, condenser type writing device above-mentioned, wherein the first threshold limit value > the second threshold limit value > third threshold
Limit value.
Preferably, condenser type writing device above-mentioned, wherein the second threshold limit value is the 1/2 of the first threshold limit value, and
And third threshold limit value is the 1/4 of the first threshold limit value.
Preferably, condenser type writing device above-mentioned, the maximum width that wherein capacitance pen is contacted with touch screen is less than two
Distance between the center of conductive bar arranged in parallel and adjacent, two conductive bars arranged in parallel and adjacent are led to be described by driving
Electric item is detected conductive bar.
Preferably, condenser type writing device above-mentioned, wherein each capacitance pen judged near to or in contact with first
Region or second area be respectively capacitance pen near to or in contact with first area or second area, wherein capacitance pen connects with touch screen
The maximum width of touching is less than or equal to 3mm.
By above-mentioned technical proposal, the present invention at least have following advantages and the utility model has the advantages that
1, small area more smaller than the nib of traditional capacitance pen can be detected to approach and contact；
2, the hanging close of the external conductive object of small area can be detected；And
3, it close to traditional writing style, is easy accurately to be written on expected position.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Figure 1A and 1B is the schematic diagram of mutual capacitance type sensor.
Fig. 1 C to 1E is small written capacitance pen that first embodiment according to the present invention proposes near to or in contact with touch screen
Schematic diagram.
Fig. 1 F to 1G be first embodiment according to the present invention propose judge small nib capacitance pen near to or in contact with show
It is intended to.
Fig. 2A be the detecting small area that proposes of first embodiment according to the present invention near to or in contact with flow diagram.
Fig. 2 B to 2G illustrates the schematic diagram of first area and second area for first embodiment according to the present invention.
Fig. 3 A and Fig. 3 B is a kind of schematic diagram for capacitance pen that second embodiment according to the present invention proposes.
[main element symbol description]
100: position detecting apparatus 110: display
120,34: the 120A: the first sensed layer of touch screen
120B: the second sensed layer 130: driving/detecting unit
140: conductive bar 160: controller
140A, Tx1, Tx2: first conductive bar 140B, Rx2: the second conductive bar
161: processor 162: memory
170: host 171: central processing unit
173: storage element P: capacitance pen
V1, V2, V3, V23, V32: capacitive couplings variable quantity
PWM: pulse width modulation signal the T1: the first threshold limit value
T2: the second threshold limit value 30: capacitance pen
31: conductive pen body 32: conductive pen point
33: contact portion 35: the contact portion of deformation
Specific embodiment
It is as follows that the present invention will be described in some embodiments.However, the present invention can also other than disclosed embodiment
Other embodiments are widely used in implement.The scope of the present invention is not limited by those embodiments, is with Shen thereafter
It please be subject to the scope of the patents.And be that clearer description is provided and enables to be familiar with this those skilled in the art to understand summary of the invention of the invention,
There is no drawing according to its opposite size, the ratio regular meeting of certain sizes and other scale dependents is highlighted each section in illustrating
And the exaggeration that seems, and incoherent detail section is not also drawn completely, in the hope of the succinct of diagram.
Figure 1A is please referred to, the present invention proposes a kind of position detecting apparatus 100, including touch screen 120, with driving/detecting list
Member 130.Touch screen 120 has sensed layer.In an embodiment of the present invention, it may include the first sensed layer 120A and the second sensed layer
120B, the first sensed layer 120A and the second sensed layer 120B have multiple conductive bars 140 respectively, wherein the first sensed layer 120A's is more
Multiple second conductive bar 140B of a first conductive bar 140A and the second sensed layer 120B are overlapping.In another implementation of the invention
In example, multiple first conductive bar 140A and the second conductive bar 140B be can be only fitted in coplanar sensed layer.Driving/detecting list
Member 130 generates sensitive information according to the signal of multiple conductive bars 140.It is that detecting is driven such as in self-capacitance detecting
Conductive bar 140, and in mutual capacitance type detecting, detecting be do not driven/part that directly drives of detecting unit 130 leads
Electric item 140.In addition, touch screen 120 can be configuration on display 110, can be between touch screen 120 and display 110
Configuration shielded layer (shielding layer) (not showing in diagram) or no configuration shielded layer.In preferable example of the invention,
In order to allow the thinner of touch screen 120, without configuration shielded layer between touch screen 120 and display 110.
Aforementioned first conductive bar and the second conductive bar can be with a plurality of row conductive bar and column conductive bar of row or column arrangement,
It can also be with a plurality of first dimension conductive bar and the second dimension conductive bar of the first dimension and the arrangement of the second dimension, or along the
The a plurality of first axle conductive bar and the second axis conductive bar of one axis and the arrangement of the second axis.In addition, aforementioned first conductive bar is led with second
Electric item is can be to each other with orthogonal overlapping, can also be with nonopiate overlapping.Such as in a polar coordinate system, described first
One of conductive bar or the second conductive bar can be radial arrangement, and the another of first conductive bar or the second conductive bar can be with
It is annular arrangement.Furthermore one of first conductive bar or the second conductive bar can be driving conductive bar, and described first is conductive
Item or the another of the second conductive bar can be detecting conductive bar.Described " the first dimension " with " the second dimension ", " first axle " with "
Second axis ", " driving " with " detecting ", " driven " with " be detected " conductive bar all can be used to indicate above-mentioned " the first " and " the
Two " conductive bars, including but not limited to composition orthogonal grid (orthogonal grids) can also constitute other to have first
Dimension and the second dimension overlap the geometry framework (geometric configurations) of (intersecting) conductive bar.
Position detecting apparatus 100 of the invention can be applied in computer system, and embodiment as shown in Figure 1B is wrapped
Include controller 160 and host 170.Controller includes driving/detecting unit 130, (is not shown with operatively coupled touch screen 120
In diagram).In addition, controller 160 may include processor 161, control driving/detecting unit 130 generates sensitive information, sensing letter
Breath can be previously stored in memory 162, and device 161 for processing accesses.In addition, host 170 constitutes the main body of computing system, it is main
It to include central processing unit 171, and for the storage element 173 that central processing unit 171 accesses, and display operation result
Display 110.
It in another embodiment of the present invention, include transport interface between controller 160 and host 170, control unit is logical
It crosses transport interface and transfers data to host, those skilled in the art can deduce that transport interface includes but is not limited to
The various wired or wireless transport interfaces such as UART, USB, I2C, Bluetooth, WiFi, IR.In an embodiment of the present invention,
The data of transmission can be position (such as coordinate), identification result (such as gesture code), order, sensitive information or other controllers
160 available information.
In an embodiment of the present invention, sensitive information, which can be, controls generated initial sensitive information by processor 161
(initial sensing information), transfer to host 170 carry out position analysis, such as position analysis, gesture judgement,
Order identification etc..In another embodiment of the present invention, sensitive information can be first is analyzed by processor 161, then
The position judged, gesture, order etc. are submitted to host 170.The present invention includes but is not limited to embodiment above-mentioned, this
The those of ordinary skill of technical field can deduce interacting between other controllers 160 and host 170.
In the crossover region of each conductive bar, the two poles of the earth are constituted with conductive bar under upper.Each crossover region can be considered
Pixel (pixel) in image (image), when having one or more external conductive objects close or touching, the image
It can be considered the image for taking touching (such as finger is touched in the implementation state (pattern) of sensing device).
When being provided driving signal by driving conductive bar, self-capacitance (self is constituted by driving conductive bar itself
Capacitance), and by each crossover region on driving conductive bar mutual capacitance (mutual capacitance) is constituted.Before
The self-capacitance detecting stated is the self-capacitance for detecting all conductive bars, especially suitable for judging the close of single external conductive object
Or contact.
Mutual capacitance type above-mentioned detecting, be when being provided driving signal by driving conductive bar, by with by driving conductive bar
The capacitance or capacitance change of all crossover regions on all sensed conductive bar detecting driving conductive bars of different dimensions arrangement,
With the column pixel being considered as in image.Accordingly, the pixel for collecting all column constitutes the image.It is led outside one or more when having
When electric object is close or touches, the image can be considered the image for taking touching, especially suitable for judging multiple external conductives
Object near to or in contact with.
These conductive bars (the first conductive bar and the second conductive bar) can be to be made of transparent or opaque material, such as
It can be and be made of transparent tin indium oxide (ITO).It can be divided into single layer structure (SITO in structure；Single ITO) and it is double-deck
Structure (DITO；Double ITO).The ordinary person of the art can deduce the material of other conductive bars, repeat no more.
For example, carbon nanotubes.
It in an embodiment of the present invention, is using laterally as first direction, and using longitudinal as second direction, therefore transverse direction
Conductive bar be the first conductive bar, and longitudinal conductive bar be the second conductive bar.Those skilled in the art can
Deduce that above description is one of the embodiment of invention, is not intended to limit the invention.For example, it may be using longitudinal as first party
To, and laterally as second direction.In addition, the number of the first conductive bar and the second conductive bar can be identical, it is also possible to
Difference, for example, the first conductive bar has N item, the second conductive bar has M item.
When carrying out the detecting of two-dimensions mutual capacitance type, it is conductive that the driving signal of exchange is sequentially provided to each first
Item, and the dimension that the conductive bar of driving signal is provided corresponding to each is obtained via the signal of second conductive bar
Sensitive information, set then constitute two-dimensions sensitive information corresponding to the sensitive information of all first conductive bars.The dimension
Sensitive information can be the signal generation according to second conductive bar, be also possible to the letter according to second conductive bar
It generates number with the measures of dispersion of benchmark.In addition, sensitive information can be the electric current, voltage, capacitive couplings amount, electricity of basis signal
Lotus amount or other characteristic electrons generate, and can be and exist in the form of analog or digital.
When actually approaching without external conductive object or cover touch screen or system does not judge external conductive object
When part is close or covers touch screen, position detecting apparatus can generate benchmark by the signal of second conductive bar, and benchmark be in
Existing is the stray capacitance on touch screen.Sensitive information can be to be generated according to the signal of the second conductive bar, or according to second
The signal of conductive bar subtracts produced by benchmark.
In existing known technology, capacitance pen (capacitive pen) is connect generally as the extension of hand with touch screen
The area needs of touching normally contact that the face achievement of touch screen is close with finger, and the change amount signal that can just obtain filling part is correctly to sentence
The position of disconnected contact out.The area will be about to cover the confluce of multiple conductive bars.
Fig. 1 C to 1E is please referred to, the small written capacitance pen proposed for first embodiment according to the present invention.The pen of capacitance pen P
Head is coupled with pen body contact, therefore the hand for holding pen body can be by nib and touch screen capacitive couplings.In addition, capacitance pen P
Nib with the contact diameter about 3mm of touch screen hereinafter, in the preferred embodiment, nib and the touching of capacitance pen P
Touch the contact diameter about 2.2mm of screen.In mutual capacitance type detecting, as driving signal (such as pulse width modulation signal (PWM；
Pulse-width modulation)) it is provided to the first conductive bar (such as the first conductive bar Tx1 or Tx2), by being led with first
The capacitive couplings that each second conductive bar (such as the second conductive bar Rx2) of electric item intersection detects each confluce on the first conductive bar become
Change amount.When capacitance pen P comes close to or in contact with confluce (such as confluce of the first conductive bar Tx2 and the second conductive bar Rx2), detecting
To capacitive couplings variable quantity V1 be likely larger than the first threshold limit value T1, however when capacitance pen P moves to two confluces (such as first
Conductive bar Tx1 and the confluce of the second conductive bar Rx2 and the first conductive bar Tx2 are intersected with the confluce of the second conductive bar Rx2
Place) it is intermediate when, the capacitive couplings variable quantity V2 and V3 of two confluces are but lower than the first threshold limit value T1, thus cause to judge
Less than the position of pen.
For this purpose, please referring to Fig. 1 F and 1G, the present invention proposes to be higher than the second threshold when the capacitive couplings variable quantity of confluce
Limit value but when not higher than the first threshold limit value, can by be added adjacent confluce capacitive couplings variable quantity (such as V23,
V32) to determine whether being more than threshold limit value to judge the position between capacitance pen P falls in two confluces.
In an embodiment of the present invention, the summation of capacitive couplings variable quantity above-mentioned can be summation and be driven same
The capacitive couplings variable quantity of the adjacent one or more confluces of conductive bar (the first conductive bar).Such as in the first conductive bar quilt
When driving signal is provided, the value of the capacitive couplings variable quantity detected by continuous a plurality of second conductive bar constitute corresponding to this
The sensitive information of one conductive bar, each of sensitive information are greater than the second threshold limit value and can less than the value of the first threshold limit value
Be in summation sensitive information after previous value or summation latter value to determine whether being greater than the first threshold limit value.
In another embodiment of the present invention, corresponding to the sensitive information of multi-conducting item (dimension sensitive information) structure
At image (two-dimensions sensitive information).Each of aforementioned sensitive information is greater than the second threshold limit value and limits less than the first threshold
The value of value is the capacitive couplings variable quantity of confluce adjacent in summation image.
Referring additionally to Fig. 2A, for a kind of method for detecting small written capacitance pen proposed according to the present embodiment.Such as step
Shown in 210, capacitive couplings variable quantity image is obtained.This capacitive couplings variable quantity image can be first touch screen not by appoint
Image is obtained when what external conductive object is close or touching, as reference images, later again or continuous several times obtain image.
The variable quantity of the image and reference images that obtain every time is capacitive couplings variable quantity image.Capacitive couplings variable quantity image
Value by the value of driving conductive bar is according to a plurality of quilt corresponding to each corresponding to a plurality of by driving conductive bar (the first conductive bar)
The signal for detecting conductive bar generates.By driving conductive bar (such as the first conductive bar), (such as second leads each with conductive bar is detected
Electric item) it can be and respectively correspond lateral coordinates and longitudinal coordinate.When each driving signal is provided in by driving conductive bar, quilt
The coordinate of each confluce on driving conductive bar is to be stacked by driving conductive bar and the two dimension that is detected conductive bar and intersects
Coordinate is spent, such as (by the coordinate of driving conductive bar, being detected the coordinate of conductive bar).
In an embodiment of the present invention, it can be and once drive adjacent two or more pieces by driving conductive bar.For example, working as
When first conductive bar has N, driving signal is provided in two adjacent the first conductive bars simultaneously every time, and two driven every time article the
One conductive bar at least one is not identical, drives N-1 times altogether.Relative to first conductive bar is only driven every time, generate by N number of one
The capacitive couplings variable quantity image (two-dimensions sensitive information) of dimension sensitive information composition, drives adjacent two simultaneously every time
First conductive bar can generate the capacitive couplings variable quantity image of N-1 dimension sensitive information composition.In the present embodiment,
The coordinate of each confluce is two two by coordinate central between driving conductive bar with the coordinate composition for being detected conductive bar
Latitude coordinates.
Next, as shown at step 220, detecting value is less than the first threshold limit value and greater than each of the second threshold limit value
Confluce, as being detected confluce.Later, as shown in step 230, each first area is detected, first area includes quilt
Confluce and adjacent confluce are detected, is detected confluce difference corresponding to adjacent confluce by driving conductive bar, and first
The summation (summation of detecting confluce and adjacent confluce) of the value in region is greater than the first threshold limit value.Next, such as step 240
It is shown, detect each second area, second area including being detected confluce four confluces (detecting confluce with
The other three confluce), each interior confluce of second area is adjacent with other two confluce in second area, and corresponding
It is greater than the first threshold limit value in the summation (summation of the value of detecting confluce and the other three confluce) of the value of second area.?
It is to detect second area when not detecting any first area in the embodiment of the present invention.In another reality of the invention
It applies in example, is all to detect second area with or without any first area is detected.As shown in step 250, in first area
Or the value of the adjacent or neighbouring confluce of second area judges first area when being both less than third threshold limit value or second area is
External conductive object near to or in contact with region.
B to 2G referring to figure 2., 5 the first conductive bars of shown array representation (by driving conductive bar) and 5 the second conductive bars
(being detected conductive bar) intersection multiple confluces (confluce 00, confluce 01 ..., confluce 04, confluce 10, confluce
11 ... confluce 44), wherein confluce 00,01,02,03,04 is the confluce on the first conductive bar T0, confluce 10,
11,12,13,14 be the confluce on the first conductive bar T1, and so on.
Assuming that detecting intersection area 22 in step 220 is to be detected confluce, then in step 230, possible firstth area
Domain will as shown in figs. 2 b and 2 c, respectively confluce 12, and 22 or confluce 22,32.Judging the value of confluce 12,22
When summation is greater than the first threshold limit value, then detecting confluce 12,22 is first area.Either, judging confluce 22,
When the summation of 32 value is greater than the first threshold limit value, then detecting confluce 22,32 is first area.On the contrary, confluce 12,
When the summation of the value of the total and/or confluce 22,32 of 22 value is all not above the first threshold limit value, then first is not detected
Region.
In addition, in step 240, possible second area will be as shown in Fig. 2 D to Fig. 2 G figure, the respectively intersection of Fig. 2 D
Locate the confluce of the 11,12,21,22, confluce 12,13,22,23 of Fig. 2 E, the confluce 21,22,31,32 of Fig. 2 F and Fig. 2 G
22,23,32,33.When the summation of the value of four confluces of any figure in Fig. 2 D to Fig. 2 G figure is more than the first threshold limit value, then
Detect second area.Conversely, being more than first when there is no the summation of the value of four confluces of any figure in Fig. 2 D to Fig. 2 G figure
When threshold limit value, then second area is not detected.
In addition, in step 250, it is assumed that first area is as shown in Figure 2 B.In an embodiment of the present invention, first area
Adjacent confluce can be confluce 02,11,13,21,23,32.In another embodiment of the present invention, the neighbour of first area
Nearly confluce can be 01,02,03,11,13,21,23,31,32,33.The adjacent or neighbouring confluce of Fig. 2 C to Fig. 2 G is according to this
Analogize, details are not described herein.
In addition, in the best mode of the present invention, the second threshold limit value and third threshold limit value are respectively the first threshold limit
The 1/2 and 1/4 of value, wherein the first threshold limit value > the second threshold limit value > third threshold limit value.This field has rudimentary knowledge
Technical staff can deduce that the first threshold limit value, the second threshold limit value and third threshold limit value, the present invention are not intended to limit the first threshold
The size of limit value, the second threshold limit value and third threshold limit value.
In the preferred embodiment, the nib of capacitance pen is thin nib, maximum width about between 2mm~3mm,
Less than between two parallel electrically conductive items or two in parallel by the shortest distance between driving conductive bar.For example, being less than center and the phase of conductive bar
The distance between adjacent center of another conductive bar is conductive less than the center of the first conductive bar and adjacent another first
The distance between center of item.
The following are the algorithms provided according to Fig. 2A.DD [i] [j] indicates the confluce being just detected in a step 220.
According to aforementioned, the present invention propose a kind of detecting small area in contact with or close to device.Shown in foundation step 210, this
Invention includes the device that capacitive couplings variable quantity image is obtained by condenser type touch screen.The capacitive touch screen has a plurality of
Be provided driving signal is detected conductive bar by driving conductive bar and a plurality of capacitive couplings variable quantity of providing.It is driving every time
When dynamic signal is provided, be simultaneously provided driving signal one or more is detected conductive bar by driving conductive bar and each
One or more confluces generate capacitive couplings, each value of capacitive couplings variable quantity image is respectively the intersection
The capacitive couplings variable quantity at one of place.
According to shown in step 220, the present invention includes that each is detected intersection by capacitive couplings variable quantity image detecting
The device at place, wherein being detected the value of confluce less than the first threshold limit value and being greater than the second threshold limit value.
According to shown in step 230, the present invention includes detecting the device of each first area, each first area includes
Described one of the confluce that is detected is with adjacent to the adjacent confluce for being detected confluce, and the summation of the value of first area is big
In the first threshold limit value.
According to shown in step 240, the present invention includes detecting the device of each second area, each second area includes
Four adjacent confluces being detected including one of confluce, and the summation of the value of second area is greater than the first threshold
Limit value.Second area is just detected when not detecting any first area as it was earlier mentioned, can be, and is also possible to no matter have
Second area is all detected when not detecting first area.
According to shown in step 250, the present invention includes working as to detect at least one first area or at least one second area
When judge external conductive object near to or in contact with first area or second area device, wherein being connect with external conductive object
The value of close or contact first area or the adjacent all confluces of second area is less than third threshold limit value.
Touch screen above-mentioned can be with it is a plurality of be provided driving signal by driving conductive bar and a plurality of offer capacitor
Property couple variations amount is detected conductive bar, when each driving signal is provided, be simultaneously provided one of driving signal or
The a plurality of one or more confluces for being detected conductive bar by driving conductive bar and each generate capacitive couplings.Based on described
Capacitive couplings, the described conductive bar that is detected provides the capacitive couplings variable quantity of the confluce, capacitive couplings
Each value of variable quantity image is respectively the capacitive couplings variable quantity of one of described confluce.
As it was earlier mentioned, in an embodiment of the present invention, the first threshold limit value > the second threshold limit value > third threshold limit value.
For example, the second threshold limit value is the 1/2 of the first threshold limit value, and third threshold limit value is the 1/4 of the first threshold limit value.This
Outside, in the best mode of the present invention, small area near to or in contact with maximum width be less than or equal to two adjacent conductive bars in
The distance between centre.For example, the small area near to or in contact with maximum width be less than or equal to 3mm, and two conductive bars
The distance between center is 6.5mm or less.The adjacent conductive bar of described two can be two it is arranged in parallel and adjacent driven
Conductive bar is detected conductive bar.
Small area above-mentioned near to or in contact with maximum width refer to touch screen of the invention be used to detecting small area connect
The maximum width of close or contact the scope of application is not necessarily referring to touch screen detecting external conductive object of the invention and approaches and contact
Maximum width.External conductive object close to contact greater than small area above-mentioned near to or in contact with maximum width when, can be used
General detecting mode is reached, such as not via judging that first area or second area directly judge.Accordingly, energy of the present invention
Detect general external conductive object close to and contact, can also detect the small area of external conductive object near to or in contact with.Example
Such as, when external conductive object is pen, pen is less than or equal to small area above-mentioned near to or in contact with the area coupled with touch screen and connects
Close or contact maximum width.In another example external conductive object close to (as hanging) above touch screen when, external conductive object
It is capacitively coupled with touch screen that external conductive isoelectric membrane touch screen above is relatively shorter than with the capacitively coupled area of touch screen
Area, external conductive object can with the capacitively coupled area of touch screen be less than or equal to small area above-mentioned near to or in contact with
Maximum width can be considered the close of the external conductive object of small area.
Accordingly, in an embodiment of the present invention, further include: by capacitive couplings variable quantity image detecting, each value is greater than
Judge each when detecting confluce of at least one value greater than the first threshold limit value the confluce of first threshold limit value
The small area of a external conductive object near to or in contact with single confluce, wherein the small area of each external conductive object connects
The adjacent all confluces in close or contact single confluce are both less than the first threshold limit value.
In an embodiment of the present invention, step 250 is performed after step 230.In addition, step 250 is also possible to
It is performed after step 240.In another embodiment of the present invention, step 250 is executed in step 230 and step 240
It is just performed afterwards.
A and Fig. 3 B referring to figure 3. is a kind of capacitance pen 30 that second embodiment according to the present invention proposes, including conduction
Pen body 31 and conductive pen point 32.Conductive pen point contact is coupled in conductive pen body, when the hand or people of conductive pen body and the pen of gripping
When body contacts, conductive pen point is coupled in hand or human body by conductive pen body contact, and conductive pen point is by body-coupled in ground.?
In the embodiment of the present invention, conductive pen point 32 is hardened by conductive fiber, is hardened or is heated with optics e.g. after gluing
Hardening.Furthermore conductive pen point 32 further includes contact portion 33, wherein contact portion 33 harden degree with it is non-contact in conductive pen point 32
The part in portion is different, and contact portion 33 is softer than the part of non-contact portion in conductive pen point 32, when being write on touch screen 34, contact portion
33 meetings are because of resistance or press generation deformation, become the contact portion 35 of deformation, thus increase contact area.Of the invention preferable
In embodiment, between the contact diameter of contact portion 33 and touch screen 34 about 3mm~1mm.In an embodiment of the present invention, conductive stylus
Head is boundling (collecting) conductive fiber with the equidirectional extension of conductive pen body, in other words, each conductive fiber be by
Conductive pen body extends to pen tip, and all or part of conductive fiber extends to contact portion by non-contact portion.The gluing of conductive fiber
It can be by conducting resinl and reach.There is the art the technical staff of general knowledge conductive fiber can be deduced (such as conduction
Polyester, conductive polyamine etc.) material with conducting resinl (such as ultraviolet photo-curing conducting resinl), details are not described herein.
Furthermore it more can be in conductive pen point and (do not shown in diagram) including conductive support sector, conductive support sector can be metal
Or non-metallic material, such as can be by copper rod or graphite bar construction.This outside contact part top more may include recessed portion, mention
It, can be compared with the biggish space of no recessed portion for the space that contact portion 33 is recessed inwardly.Contact portion 33 is coniform, and the vertex of a cone can be with
It is that there is aforementioned recess.
In an embodiment of the present invention, the maximum width that contact portion 33 is contacted with touch screen 34 is less than 34 parallel of touch screen
The distance of the centreline space of two conductive bars of column.In an embodiment of the present invention, the at most two parallel electrically conductive items of contact of contact portion 33.
In another embodiment of the present invention, the at most two adjacent confluces of contact of contact portion 33.
Accordingly, the present invention proposes a kind of condenser type writing device, comprising: capacitance pen and position detecting apparatus；The position is detectd
Surveying device includes touch screen and controller.Capacitance pen includes that conductive pen body and conductive pen point, conductive pen body are contacted with conductive pen point
Property coupling, and conductive pen point includes contact portion and non-contact portion, and wherein contact portion is soft compared with non-contact portion, and conductive pen point is
By conductive fiber gluing, all or part of conductive fiber extends to contact portion by non-contact portion.In addition, touch screen is with a plurality of
Be provided driving signal is detected conductive bar by driving conductive bar and a plurality of capacitive couplings variable quantity that provides, and is every time driving
When dynamic signal is provided, be simultaneously provided driving signal one or more is detected conductive bar by driving conductive bar and each
Confluce generate capacitive couplings.In addition, working as capacitance pen by external conductive object (hand or human body as the aforementioned) in touch screen
When upper gripping, controller judges capacitance pen on the touchscreen according to the capacitively coupled variable quantity that the confluce generates
Position.
According to it is above-mentioned detecting small area in contact with or close to device described in, controller can include: by condenser type touch screen
The device of capacitive couplings variable quantity image is obtained, wherein each value of capacitive couplings variable quantity image is respectively the friendship
The capacitive couplings variable quantity that one of can locate；First threshold limit value is greater than by each value of capacitive couplings variable quantity image detecting
Confluce device；And when detecting confluce of at least one value greater than the first threshold limit value, judge each
Capacitance pen near to or in contact with single confluce device, wherein each capacitance pen near to or in contact with single confluce
Adjacent all confluces are both less than the first threshold limit value.
Controller also may include: the device that capacitive couplings variable quantity image is obtained by condenser type touch screen, wherein electricity
Each value of capacitive coupling variable quantity image is respectively the capacitive couplings variable quantity of one of described confluce；By capacitive character coupling
Closing variable quantity image detecting, each is detected the device of confluce, wherein being detected the value of confluce less than the first threshold limit value
Be greater than the second threshold limit value；And the device of each first area is detected, each first area includes described is detected
One of confluce is with adjacent to the adjacent confluce for being detected confluce, and the summation of the value of first area is greater than the first threshold
Limit value；When detecting at least one first area, judge stylus near to or in contact with first area device, wherein with
Capacitance pen near to or in contact with the values of the adjacent all confluces in first area be less than third threshold limit value.
Furthermore controller more may include: to detect each second area when not detecting any first area
Device, each second area include four adjacent confluces being detected including confluce, and second area
The summation of value is greater than the first threshold limit value；And when detecting at least one second area, judge that stylus is close or connects
The device of the second area of touching, wherein with capacitance pen near to or in contact with the adjacent all confluces of second area value less than
Three threshold limit values.
In the best mode of the present invention, the first threshold limit value > the second threshold limit value > third threshold limit value.Such as: second
Threshold limit value is the 1/2 of the first threshold limit value, and third threshold limit value is the 1/4 of the first threshold limit value.
In addition, in an embodiment of the present invention, the maximum width that capacitance pen is contacted with touch screen it is arranged in parallel less than two and
Distance between the center of adjacent conductive bar, two conductive bars arranged in parallel and adjacent are described by driving conductive bar or to be detectd
Survey conductive bar.In another embodiment of the present invention, each capacitance pen judged near to or in contact with first area or
Second area be respectively capacitance pen near to or in contact with first area or second area, wherein capacitance pen contacts most with touch screen
Big width is less than or equal to 3mm.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (8)
Applications Claiming Priority (3)
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| US201161577175P | 2011-12-19 | 2011-12-19 | |
| US61/577,175 | 2011-12-19 | ||
| CN201210545877.XA CN103197816B (en) | 2011-12-19 | 2012-12-14 | capacitive writing device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210545877.XA Division CN103197816B (en) | 2011-12-19 | 2012-12-14 | capacitive writing device |
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| CN105807956A CN105807956A (en) | 2016-07-27 |
| CN105807956B true CN105807956B (en) | 2019-05-07 |
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| CN201210546661.5A Active CN103164054B (en) | 2011-12-19 | 2012-12-14 | Wireless capacitive writing device |
| CN201610003790.8A Active CN105511704B (en) | 2011-12-19 | 2012-12-14 | capacitance pen and controller thereof |
| CN201210546409.4A Active CN103164097B (en) | 2011-12-19 | 2012-12-14 | Method and device for detecting small-area contact or proximity of capacitive touch screen |
| CN201810059924.7A Active CN108459757B (en) | 2011-12-19 | 2012-12-14 | Processor and touch control method of touch screen |
| CN201210546653.0A Active CN103164098B (en) | 2011-12-19 | 2012-12-14 | Detecting device and method of touch screen |
| CN201210545877.XA Active CN103197816B (en) | 2011-12-19 | 2012-12-14 | capacitive writing device |
| CN201610111625.4A Active CN105807956B (en) | 2011-12-19 | 2012-12-14 | Capacitive pen |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210546661.5A Active CN103164054B (en) | 2011-12-19 | 2012-12-14 | Wireless capacitive writing device |
| CN201610003790.8A Active CN105511704B (en) | 2011-12-19 | 2012-12-14 | capacitance pen and controller thereof |
| CN201210546409.4A Active CN103164097B (en) | 2011-12-19 | 2012-12-14 | Method and device for detecting small-area contact or proximity of capacitive touch screen |
| CN201810059924.7A Active CN108459757B (en) | 2011-12-19 | 2012-12-14 | Processor and touch control method of touch screen |
| CN201210546653.0A Active CN103164098B (en) | 2011-12-19 | 2012-12-14 | Detecting device and method of touch screen |
| CN201210545877.XA Active CN103197816B (en) | 2011-12-19 | 2012-12-14 | capacitive writing device |
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| CN (7) | CN103164054B (en) |
| TW (5) | TWI604345B (en) |
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